Infrared Thermal Image Camera, can see over 1800M in Dark Infrared Thermal Image Camera. Detailed SpecificationsModelDS7384-1DS7384-2DS7384-3DS7384-4DS7384-5USD Price$6,500$6,700$6,900$7,100$7,300Focal Length11mm15mm28mm40mm75mmVisual Angle50°x37°36°x27°20°x15°14°x10°7°x5°Image Distinguishing Distance35m45m85m120m230mImage Dietecting Distance260m350m670m960m1800mMinimun Image Distance0.13m0.3m0. ...